Voltmeter Digital 0-20 V Dc. A high quality range of ergonomically designed digital meters. versions are offered covering most applications and ranges. The units come in moulded plastic cases and feature 25 mm LCD. Input is via colour coded mm sockets and the units are short circuit and overload protected. Powered by 9 PP3 battery (not supplied). Dimensions (L W D): 115 80 45 mm.